JVC KD-G140J User manual
SERVICE MANUAL
COPYRIGHT © 2009 Victor Company of Japan, Limited No.MA372<Rev.004>
2009/2
CD RECEIVER
MA372<Rev.004>20092SERVICE MANUAL
KD-G140J, KD-G240J, KD-G244UI, KD-G245U, KD-G245UN,
KD-G245UT, KD-G245UH, KD-G248UF, KD-G341E,
KD-G341EX, KD-G341EY, KD-G341EU, KD-G342E,
KD-G342EX, KD-G342EY,KD-G342EU, KD-G343E, KD-G343EX,
KD-G343EY, KD-G343EU, KD-G347SEE, KD-G347BEE,
KD-G394UI, KD-G395U, KD-G395UN,KD-G395UT, KD-G395UH,
KD-G396U, KD-G396UN, KD-G396UT, KD-G396UH,
KD-G398UF,KD-G396SUI, KD-G299UR, KD-S15J,
KD-G347BEE2, KD-G347SEE2, KD-G245HUN
COPYRIGHT © 2009 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
KD-G140/KD-G240
only for
KD-G394/KD-G395
KD-G396/KD-G398
KD-G299/KD-S15
only for
KD-G240/KD-G341/KD-G342
KD-G299
KD-G343/KD-G347/KD-G394
KD-G395/KD-G396/KD-G398
KD-G140
KD-G240
KD-G299
KD-S15
only for
only for
KD-G347
KD-G341
KD-G342
KD-G343
only for
KD-G347
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
1-2 (No.MA372<Rev.004>)
SPECIFICATION
KD-G140/KD-G240/KD-S15
Design and specifications are subject to change without notice.
Audio amplifier section
Power Output 20 W RMS ×4 Channels at 4 Ωand < or = 1% THD+N
Signal to Noise Ratio 80 dBA (reference: 1 W into 4 Ω)
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance 2.5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Subwoofer-Out Level/Impedance 2.5 V/20 kΩload (full scale)
Tuner section
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
(400 kHz)
65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
(for KD-G240) Max. Bit Rate
MPEG1/2 Audio Layer 3
320 kbps
WMA (Windows Media®
Audio) Decoding Format
(for KD-G240)
Max. Bit Rate 192 kbps
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W ×H ×D) Installation Size (approx.) 182 mm ×52 mm ×160 mm (7-3/16” ×2-1/16” ×6-5/16”)
Panel Size (approx.) 188 mm ×58 mm ×5 mm (7-7/16” ×2-5/16” ×1/4”)
Mass (approx.) 1.3 kg (2.9 lbs) (excluding accessories)
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
(No.MA372<Rev.004>)1-3
KD-G244/KD-G245/KD-G248/KD-G394/KD-G395/KD-G396/KD-G398
Design and specifications are subject to change without notice.
Audio amplifier section
Maximum Power Output: Front/Rear 50 W per channel
Continuous Power Output (RMS): Front/Rear 19 W per channel into 4 Ω40 Hz to 20 000 Hz at no more than 0.8%
total harmonic distortion.
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance (for KD-G395/KD-G396/KD-G398) 2.5 V/20 kΩload (full scale)
Output Impedance (for KD-G395/KD-G396/KD-G398) 1 kΩ
Other Terminal (except for KD-G248/KD-G398) AUX (auxiliary) input jack
Tuner section
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
(400 kHz)
65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation (for KD-G244/KD-G394) 35 dB
(for others) 30 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format (MPEG1/
2 Audio Layer 3) (for KD-G395/
KD-G396/KD-G398)
Max. Bit Rate 320 kbps
WMA (Windows Media® Audio)
Decoding Format (for KD-G395/
KD-G396/KD-G398)
Max. Bit Rate 192 kbps
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W ×H ×D) Installation Size (approx.) 182 mm ×52 mm ×160 mm
Panel Size (approx.) 188 mm ×58 mm ×5 mm
Mass (approx.) 1.3 kg (excluding accessories)
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
1-4 (No.MA372<Rev.004>)
KD-G341/KD-G342/KD-G343
Design and specifications are subject to change without notice.
Audio amplifier section
Maximum Power Output: Front/Rear 50 W per channel
Continuous Power Output (RMS): Front/Rear 19 W per channel into 4 Ω40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion.
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Tone Control Range Bass ±12 dB at 100 Hz
Treble ±12 dB at 10 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Other Terminal AUX (auxiliary) input jack
Tuner section
Frequency Range FM 87.5 MHz to 108.0 MHz
AM MW: 522 kHz to 1 620 kHz
LW: 144 kHz to 279 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
(400 kHz)
65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB
LW Tuner Sensitivity 50 µV
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
(MPEG1/2 Audio Layer 3)
Max. Bit Rate 320 kbps
WMA (Windows Media®
Audio) Decoding Format
Max. Bit Rate 192 kbps
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W ×H ×D) Installation Size (approx.) 182 mm ×52 mm ×160 mm
Panel Size (approx.) 188 mm ×58 mm ×13 mm
Mass (approx.) 1.3 kg (excluding accessories)
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TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
(No.MA372<Rev.004>)1-5
KD-G347
Design and specifications are subject to change without notice.
Audio amplifier section
Maximum Power Output: Front/Rear 50 W per channel
Continuous Power Output (RMS): Front/Rear 19 W per channel into 4 Ω40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion.
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Tone Control Range Bass ±12 dB at 100 Hz
Treble ±12 dB at 10 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Other Terminal AUX (auxiliary) input jack
Tuner section
Frequency Range FM1/2 87.5 MHz to 108.0 MHz
FM3 65.00 MHz to 74.00 MHz
AM MW: 522 kHz to 1 620 kHz
LW: 144 kHz to 279 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
(400 kHz)
65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB
LW Tuner Sensitivity 50 µV
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
(MPEG1/2 Audio Layer 3)
Max. Bit Rate 320 kbps
WMA (Windows Media®
Audio) Decoding Format
Max. Bit Rate 192 kbps
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W ×H ×D) Installation Size (approx.) 182 mm ×52 mm ×160 mm
Panel Size (approx.) 188 mm ×58 mm ×13 mm
Mass (approx.) 1.3 kg (excluding accessories)
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TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
1-6 (No.MA372<Rev.004>)
KD-G396
Design and specifications are subject to change without notice.
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output
(RMS)
Front/Rear 19 W per channel into 4 Ω40 Hz to 20 000 Hz at no more than 0.8%
total harmonic distortion.
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Other Terminal AUX (auxiliary) input jack
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz)
65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format (MPEG1/2 Audio Layer 3) Max. Bit Rate: 320 kbps
WMA (Windows Media®Audio) Decoding Format Max. Bit Rate: 192 kbps
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W ×H ×D)
(approx.)
Installation Size 178 mm ×50 mm ×160 mm
Panel Size 178 mm ×50 mm ×17 mm
Mass 1.3 kg (excluding accessories)
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TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
(No.MA372<Rev.004>)1-7
KD-G299
Design and specifications are subject to change without notice.
Audio amplifier section
Power Output 20 W RMS ×4 Channels at 4 Ωand < or = 1% THD+N
Signal to Noise Ratio 80 dBA (reference: 1 W into 4 Ω)
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Tone Control Range Bass ±12 dB at 60 Hz
Mid-range ±12 dB at 1 kHz
Treble ±12 dB at 7.5 kHz
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance 2.5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Subwoofer-Out Level/Impedance 2.5 V/20 kΩload (full scale)
Tuner section
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity
(400 kHz)
65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
CD player section
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format
Max. Bit Rate
MPEG1/2 Audio Layer 3
320 kbps
WMA (Windows Media®
Audio) Decoding Format
Max. Bit Rate 192 kbps
General
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W ×H ×D) Installation Size (approx.) 182 mm ×52 mm ×160 mm (7-3/16” ×2-1/16” ×6-5/16”)
Panel Size (approx.) 188 mm ×58 mm ×5 mm (7-7/16” ×2-5/16” ×1/4”)
Mass (approx.) 1.3 kg (2.9 lbs) (excluding accessories)
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TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
1-8 (No.MA372<Rev.004>)
SECTION 1
PRECAUTION
1.1 Safety Precautions
!Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.
!Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.
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TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
(No.MA372<Rev.004>)1-9
1.2 Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.2.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(3) Handling the optical pickup
• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily
destroy the laser diode.
1.3 Handling the traverse unit (optical pickup)
(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a
time when attaching it to the connector.
(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
1.4 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the pickup unit.
• Apply solder to the short land before the card wire is disconnected from the connector on the pickup unit.
(If the card wire is disconnected without applying solder, the pickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land after connecting the card wire.
1M
(caption)
Anti-static wrist strap
Conductive material
(conductive sheet) or iron plate
Mechanism control board
CN102
Pickup
Flexible wire
Short land section
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TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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1-10 (No.MA372<Rev.004>)
1.5 Important for laser products
1.CLASS 1 LASER PRODUCT
2.CAUTION :
(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.
3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.
4.CAUTION : This laser product uses visible and/or invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.
REPRODUCTION AND POSITION OF LABELS and PRINT
!Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL and PRINT
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TEL 13942296513 QQ 376315150 892498299
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(No.MA372<Rev.004>)1-11
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
3.1 Main body (used figure is KD-G341)
3.1.1 Removing the FRONT CHASSIS assembly (See Fig.1)
(1) Disengage the four hooks aengaged the both side of the
FRONT CHASSIS assembly.
Fig.1
3.1.2 Removing the HEAT SINK (See Fig.2, 3)
(1) Remove the three screws Aand the two screws Battaching
the HEAT SINK. (See Fig.2)
(2) Remove the two screws Cand the one screw Dattaching
the HEAT SINK. (See Fig.3)
Fig.2
Fig.3
3.1.3 Removing the BOTTOM COVER (See Fig.4)
(1) Remove the one screw Eattaching the BOTTOM COVER.
(2) Slide the BOTTOM COVER to backward.
Fig.4
hook a
A
B
C
D
E
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TEL 13942296513 QQ 376315150 892498299
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1-12 (No.MA372<Rev.004>)
3.1.4 Removing the MAIN BOARD assembly (See Fig.5)
(1) Remove the two screws Fattaching the MAIN BOARD assembly.
(2) Disconnect the connector CN501 connected to MAIN
BOARD assembly and CD MECHANISM assembly.
Fig.5
3.1.5 Removing the CD MECHANISM assembly (See Fig.6)
(1) Remove the three screws Gattaching the CD MECHANISM
assembly.
Fig.6
3.1.6 Removing the SWITCH BOARD assembly (See Fig.7)
(1) Remove the VOLUME KNOB.
(2) Remove the four screws Hattaching the REAR COVER.
(3) Disengage the nine hooks bengaged the REAR COVER.
Fig.7
E
CN501
F
F
hook b
hook b
H
H
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TEL 13942296513 QQ 376315150 892498299
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(No.MA372<Rev.004>)1-13
3.2 CD MECHANISM assembly section
• Remove the CD MECHANISM assembly from the main body.
3.2.1
Removing the MECHANISM CONTROL BOARD
assembly (See Fig.
1
and
2
)
(1)
From the bottom side of CD MECHANISM assembly,
remove the solders from the soldered sections (
a
,
b
and
c
) on the MECHANISM CONTROL BOARD assembly.
(See Fig.
1
.)
(2) Remove the three screws Aand one screw Battaching the
MECHANISM CONTROL BOARD assembly. (See Fig.1.)
(3) Solder the short land sections on the pickup. (See Fig.2.)
Caution:
• Solder the short land sections on the pickup before
disconnecting the flexible wire from the connector
CN102 on the MECHANISM CONTROL BOARD as-
sembly.
If the card wire is disconnected without attaching
solder, the pickup may be destroyed by static
electricity. (See Fig.
2
.)
•
When attaching the MECHANISM CONTROL
BOARD assembly, remove the solders from the
short land sections after connecting the flexible
wire to the connector CN102 on the MECHANISM
CONTROL BOARD assembly.
Fig.1
Fig.2
A
CN102
Mechanism
control board
A
A
B
b
a
c
Mechanism control board
CN102
Pickup
Flexible wire
Short land section
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TEL 13942296513 QQ 376315150 892498299
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1-14 (No.MA372<Rev.004>)
3.2.2 Removing the top cover (See Fig.3 to 5)
• Remove the MECHANISM CONTROL BOARD assembly.
(1) From the front side of the CD MECHANISM assembly,
change the hook position of the two roller springs. (See
Fig.3.)
(2) From the side of the CD MECHANISM assembly, remove
the six screws Cattaching the top cover. (See Fig.3 and 4.)
(3) Take out the top cover in an upward direction. (See Fig.5.)
Fig.3
Fig.4
Fig.5
C
Top cover
Roller spring Roller spring
C
C
Top cover
Top cover
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TEL 13942296513 QQ 376315150 892498299
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(No.MA372<Rev.004>)1-15
3.2.3 Removing the roller (See Fig.6)
• Remove the MECHANISM CONTROL BOARD assembly and
top cover.
(1) From the bottom side of the top cover, remove the screw D
attaching the gear holder.
(2) Remove the R.holder assembly from disc plate, and then
take out the roller from R.holder assembly in the direction
of the arrow.
Reference:
When attaching the R.ACT gear (2) and R.ACT gear (3),
apply grease to the section dof R.holder assembly.
Fig.6
3.2.4 Removing the PHOTO BOARD assembly (See Fig.7 and 8)
• Remove the MECHANISM CONTROL BOARD assembly and
top cover.
(1)
From the bottom side of the top cover, release the
projection
e
from the notch of the disc plate. (See
Fig.
7
.)
(2) Take out the disc plate in the direction of the arrow. (See
Fig.7.)
(3) From the reverse side of the disc plate, remove the screw
Eattaching the PHOTO BOARD assembly. (See Fig.8.)
Fig.7
Fig.8
Roller coller
Roller
R.ACT gear(3)
Roller gear
Gear holder
R.ACT gear(2)
R.holder assembly
Top cover Disc plate
Washer
D
d
Top cover Disc plate
e
e
Photo board
Disc plate
E
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TEL 13942296513 QQ 376315150 892498299
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1-16 (No.MA372<Rev.004>)
3.2.5 Removing the mechanism section (See Fig.9 and 10)
• Remove the MECHANISM CONTROL BOARD assembly and
top cover.
(1)
From the top side of the CD MECHANISM assembly,
remove the two screws
F
attaching the loading motor
assembly. (See Fig.
9
.)
(2) Remove the two roller springs on the top side of the mecha
frame. (See Fig.9.)
(3) Remove the four SUS springs on the top side of the mecha
frame. (See Fig.9.)
(4) Remove the link spring on the top side of the mecha frame.
(See Fig.10.)
(5) Release section fof the three dampers from the mecha
frame. (See Fig.10.)
Reference:
When attaching the roller spring and SUS spring, keep
direction before remove.
(6)
Move the slide cam (R) assembly in the direction of the
arrow, and then take out the mechanism section in an
upward direction. (See Fig.
10
.)
Reference:
When attaching the mechanism section, apply grease to
the section g. (See Fig.10.)
Fig.9
Fig.10
F
Mechanism section
Mecha frame
Roller spring
Loading motor assembly
SUS
spring
SUS
spring
SUS
spring
SUS
spring
Damper
Mecha frame
Mechanism section
Link spring
Slidecam(R)
assembly
f
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TEL 13942296513 QQ 376315150 892498299
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(No.MA372<Rev.004>)1-17
3.2.6 Removing the slide cam (L) (See Fig.11 to 13)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
(1) From the top side of the mecha frame, remove the screw G
attaching the cam cover. (See Fig.11.)
(2)
Take out the cam cover from mecha frame in an upward
direction. (See Fig.
11
.)
(3) Take out the slide cam (L) in the direction of the arrow.
(See Fig.12.)
Reference:
When attaching the slide cam (L), apply grease to the
section h. (See Fig.13.)
Fig.11
Fig.12
Fig.13
Mecha frame
Cam cover
G
Mecha frame
Slide cam(L)
Slide cam(L)
Slide cam(L)
h
h
h
h
h
hh
h
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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1-18 (No.MA372<Rev.004>)
3.2.7 Removing the F.lock lever and slide cam (R) (See
Fig.14 and 15)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
(1) From the top side of the mecha frame, take out the slide
cam (R) assembly in an upward direction. (See Fig.14.)
(2) Rotate the F.lock lever in the direction of the arrow 1, and
then take out the direction of the arrow 2. (See Fig.14.)
Reference:
When attaching the slide cam (R) assembly, the f.lock
lever and the link arm apply grease to the section
h
.
(See Fig.
14
and
15
.)
Fig.14
Fig.15
3.2.8 Removing the damper (See Fig.16)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
From the mechanism section, pull out the three dampers in the
direction of the arrow.
Reference:
Before inserting the shaft to the dampers, apply IPA to the
pocket jof damper.
Fig.16
h
hh
h
h
h
Mecha frame
Link arm
F.lock lever 2
1
Slide cam(R) assembly
Slide cam(R) assembly
h
h
h
h
h
h
Slide cam(R) assembly
j
j
j
Damper (Brown)
Damper (Brown)
Damper (Gray)
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Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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(No.MA372<Rev.004>)1-19
3.2.9 Removing the clamper assembly (See Fig.17)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover and mechanism section.
(1) From the top side of the mechanism section, release the
clamper spring.
(2) Move the clamper assembly in the direction of the arrow,
and then release the joints (kand m).
(3)
Take out the clamper assembly from the T.M chassis
assembly.
Fig.17
k
m
Clamper assembly
Clamper spring
T.M. chassis assembly
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Q
TEL 13942296513 QQ 376315150 892498299
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1-20 (No.MA372<Rev.004>)
3.2.10 Removing the feed motor (See Fig.18 and 19)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover, mechanism section and clamper assembly.
(1) From the bottom side of the T.M chassis assembly, remove
the two screws Hattaching the feed motor assembly. (See
Fig.18.)
(2)
Remove the two screws
J
attaching the feed motor to
f.motor holder. (See Fig.
19
.)
Reference:
When attaching the f. wheel gear, trigger arm and feed
motor, apply grease to the sections (n, pand q). (See
Fig.18 and 19.)
3.2.11 Removing the SWITCH BOARD assembly (See
Fig.18)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover, mechanism section, clamper assembly and feed motor
assembly.
From the bottom side of the T.M chassis assembly, take out
the SWITCH BOARD assembly in an upward direction from
T.M chassis assembly.
Fig.18
Fig.19
3.2.12 Removing the loading motor (See Fig.20)
• Remove the MECHANISM CONTROL BOARD assembly, top
cover, mechanism section and clamper assembly.
(1) From the right side of the L.M base assembly, remove the
two screws Kattaching the loading motor.
(2) Take out the loading motor in the direction of the arrow
from the L.M base assembly.
Reference:
When attaching the loading motor, apply grease to the
section r.
Fig.20
n
Feed motor assembly
Switch board
F.wheel gear
T.M. chassis assembly
Trigger arm
p
H
q
Comp. spring
F.motor holder
J
F.worm gear
Feed motor
r
Loading moto
r
L.M. base assembly
KL.worm gear
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Q
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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